If you are using Windows 10/8/7 and you recently received an error message when starting Windows Defender - the service of this program has stopped, you need to fix this problem as soon as possible, as your computer is in a vulnerable state. Full message:
Windows Defender:
The service of this program has been stopped. You can start the service manually or restart your computer to start automatically. (Error code: 0x800106ba)
If you use more old version Windows, you can see different wording, but the problem is the same.
This program is disabled. If you are using another program that checks for malware or unwanted software, use the Action Center to check the status of this program.
You may be prompted to turn on Defender. However, in most cases, the problem persists even after you manually enable Windows Defender or restart your computer.
The service of this program has stopped, Error code 0x800106ba
Disable third-party antivirus programs
This problem occurs mainly when other antivirus software is installed on the computer. Although Windows Defender should stop after receiving a signal from other antivirus programs, sometimes this issue can occur due to some internal error. In this case, you must disable third party application and check if the problem persists or not. If the issue is resolved, you may need to reinstall third-party antivirus software.
Enable Windows Defender Service
According to the error message, the Windows Defender service has been stopped. Therefore, you need to enable it using the Windows Service Manager. To do this, enter “ services.msc"In the search box of the taskbar or in the command line "Run" and press Enter to open it.
Now look at the status of the following services:
- Windows Defender Advanced Threat Protection Service
- Verification service Windows networking Defender antivirus
- Windows Defender Antivirus
- Windows Defender Security Center Service
Check and correct if necessary, "Startup type" for all these services should be set as "Automatically" and it must be Fulfilled. If not, you need to enable this service. To do this, double-click the corresponding service and select "Automatically" as the startup type. Then press the button "Run" In chapter "State"... Finally press Apply.
Sometimes re-registering the appropriate DLL files can help resolve this issue. To get started, as an administrator and run the following commands one after the other:
Regsvr32 atl.dll regsvr32 wuapi.dll regsvr32 softpub.dll regsvr32 mssip32.dll
After that, open Windows Defender and check if the problem is fixed or not.
Check the settings in the Group Policy Editor.
Make sure you haven't mistakenly disabled Windows Defender using an editor group policy... Some malware can also modify this security feature. To verify this, enter gpedit.msc in the search menu and press Enter to open the Local Group Policy Editor.
Then follow this path:
Computer Configuration -> Administrative Templates -> Windows components→ Windows Defender Antivirus
On the right side, find the option "Switch off antivirus program Windows Defender "... Double click on it and check that the parameter is set "Not set"... If this parameter is set to "Included", you need to change it to "Not set".
Check the Registry Editor setting
If you suspect that some malware has modified the Defender's registry keys, you need to fix this problem.
And go to that location.
How to turn on Windows Defender in Windows 8 or is it already on and running? How can they check a suspicious file or folder? There are many sites on the Internet describing the operation of this built-in antivirus in Windows 8, but on none of them it is impossible to ask a question, comments are disabled everywhere. In short, this is my story. Recently I bought a laptop with Windows 8, immediately installed an antivirus program in it, then I learned from my friends that Windows 8 already has an integrated Windows Defender antivirus program from Microsoft, I want to leave it and remove the one that I installed, why do I need two antivirus programs on my computer. But I can't turn on Windows Defender in Windows 8, I just can't find it anywhere, it seems to me that this built-in antivirus is completely absent in my eight. Sergey.
How to enable Windows Defender in Windows 8
In our article we will tell you how to enable and how to disable, if necessary, the built-in in Windows 8 Windows antivirus Defender.Turn on Windows Defender very simple, but if you have a third-party antivirus program installed on your computer, then you must first remove it from your operating system, otherwise for turning on Windows Defender will get an error. " Windows program Defender is disabled and does not monitor the computer. If you are using another application to track malware or unwanted software, use the Action Center to check its status."
Therefore, if after purchasing a computer with preinstalled Windows 8, you installed an additional antivirus, uninstall it. Then turn on Windows Defender.
So, the installed antivirus is removed, we turn on Windows Defender. Right-click in the left corner of the desktop and select "Control Panel"
In the "Search" field, enter Windows Defender or Windows Defender
and here you are, our built-in antivirus has been found.
Click on it with the left mouse and run it. Or you can create a shortcut on the desktop for easy launch. Click on our antivirus with the right mouse and select "Create shortcut". If the antivirus does not start, read on.
Right-click in the right corner of the desktop and select "Control Panel"
then "System and Security"
"Support Center",
"Security"
Virus protection- click "Turn on now".
That's it, our built-in Windows Defender antivirus is now enabled and in production
Launch Windows Defender. The main window of the program. Home.
In this window, you can check your Windows 8 for the presence of malware. Verification parameters:
Fast - a fast scan scans the areas most often susceptible to malware infection, these are startup objects, temporary files.
Full - all files on your hard drive are scanned.
Special - the selected files and folders are scanned for viruses. Select the folders you need to scan. I advise you to always check the drive (C :) for viruses.
Updates. Windows Defender updates automatically.
Here you can see all malware detected by Windows Defender Antivirus. You can remove them permanently, mark all viruses with a tick and click "Remove".
If suddenly the antivirus makes a mistake (which is extremely rare), you can restore the file you need, mark it with a tick and click Restore.
Options.
To ensure that your antivirus always protects you, I advise you to check the box "Enable real-time protection".
Windows Defender will be permanently in random access memory and watch everything that happens in your Windows 8. How it happens.
For example, you tried to copy an infected malware file, the built-in antivirus Windows Defender will automatically remove the virus from your computer and from the flash drive too.
If you are interested in more full settings, you can read our article "".
Table of Contents
What is the Accessibility Service Indicator?
An icon displayed in the Firefox tab bar which communicates to users that Firefox Accessibility Service is enabled and in use.
What is Firefox Accessibility Service?
Firefox Accessibility Service is a technology built into Firefox that provides 3rd party applications running on the same device the ability to inspect, monitor, visualize, and alter web page content hosted within Firefox.
Assistive Technologies
Applications that provide access to web content hosted in Firefox for users with physical impairments often enable Firefox Accessibility Service. This is the intended use of Firefox Accessibility Service.
Often described as "browser protections" promoting security improvements, these features rarely add valuable security to Firefox and other browsers. Most are poorly designed and poorly tested, and can inadvertently disable more effective security measures built into Firefox. These features also often cause problems during upgrades to Firefox, triggering nasty startup crashes and other abnormalities.
Mozilla does not support or sanction this use of Accessibility Service and actively works with anti-virus vendors to migrate their Accessibility Service extensions to other Firefox extension mechanisms designed for this use.
Mozilla recommends disabling these anti-virus features if they enable Firefox Accessibility Service.
Corporate sign-on assistive technologies, copyright protection, employee and student monitoring, and remote access through remote desktop technologies often turn Firefox Accessibility Service on.
Niche Shareware or Freeware applications
Firefox Accessibility service is occasionally consumed by niche software applications that interact with your web browser to accomplish unique tasks or duties. Examples include: automatic web page form filling, time use tracking, and media managers.
Mozilla does not support or sanction this use of Accessibility Service and suggests these application vendors migrate their software to more appropriate browser extension mechanisms.
Mozilla recommends disabling or uninstalling these applications if they enable Firefox Accessibility Service.
Malware and adware
Firefox Accessibility Service can be abused by malware, if present, to monitor user behavior or access user information on the web.
If you suspect your device is infected with malware, consider purchasing and running a competent anti-malware software product to address the issue.
What is the impact of having Firefox Accessibility Service enabled?
- Firefox Accessibility Service may negatively impact Firefox browsing performance
- Third party applications may be monitoring your web surfing activity
- Firefox stability may be adversely affected
My Accessibility Service Indicator is visible, what should I do?
A 3rd party application is accessing your browser through Firefox Accessibility Service. Investigate what software might be involved to determine if you feel this access is acceptable. If you do not, consider uninstalling or disabling the application accessing Firefox Accessibility Service. If this is not possible, consider disabling Firefox Accessibility Service within Firefox.
- Enter about: support in the address bar. The Troubleshooting Information page will open.
- Find the "Accessibility" section and look at the value in the "Accessibility Instantiator" entry.
- blank - No client information was retrieved
- An application path that points to a program that accessed Firefox Accessibility Service.
| Example path information | C: \ Windows \ System32 \ Magnify.exe |
- An encoded value, for example: "NVDA" indicating Firefox recognized the application. Listed below are common values and a description of the client detected.
| Value | Description |
| "NVDA" | NVDA screen reader |
| "JAWS" | A compatible version of JAWS screen reader |
| "OLDJAWS" | An incompatible version of JAWS screen reader detected |
Should I disable Firefox Accessibility Service?
Assistive Technologies
Do not disable Firefox Accessibility Service if you or someone who shares your device accesses the web through Firefox using any type of physical impairment assistive software.
Anti-Virus and Anti-Malware Browser Plugins
If you determine an anti-virus software extension is enabling Firefox Accessibility Service Mozilla recommends you disable this 3rd party software feature. If a disable configuration option is not available Mozilla recommends disabling Firefox Accessibility Service from within Firefox.
Enterprise or Educational Monitoring and Access
Users in enterprise or educational networks should contact their administrator about disabling Firefox Accessibility Service.
Windows Defender is a suite of modules from Microsoft designed to track suspicious changes and eliminate potentially dangerous components. Available in the program various settings and the ability to disable it as unnecessary. This method identical on all Windows versions.
Understanding Windows Defender
The defender takes over the functions of antivirus if it is not available. In practice, the application in question guarantees protection only against the so-called. "Trojans". To combat other malicious products, you need to install third-party antiviruses. The developer of the defender additionally notifies the owner of this.The product arsenal is quite rich. The Defender allows you to do the following:
monitor autostart;
monitor security settings;
monitor applications that activate with IE;
control browser settings;
regulate the work of various files and add-ons that start with the browser;
monitor the functioning of drivers and services;
regulate the actions of installed and already installed programs;
keep track of files and add-ons for registering and launching various software products;
control the order of updating OS modules.
The list of functions may vary depending on the version of the defender and Windows itself.
Turning on the defender
To turn on the product and check if it works correctly, go to Start.
The screenshot shows the window of the product in question. In all current versions The OS menu has almost the same look.
If the defender won't turn on, activate it yourself. Find through the search bar in the "Start" program "Services" and go to it.
Open the defender service. Go to the Launch type tab, select automatically (delayed launch) from the drop-down list and enable the defender by clicking on “Launch”.
The defender will be activated.
Disabling the defender
If necessary, the defender can be turned off directly from its settings.In Control Panel, turn on Small Icons and then look for Windows Defender.
Open the "Programs" item.
2. Open the branch: Local Group Policy Editor -> Policy " Local computer"-> Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender or ( Endpoint Protection) -> Real-time protection and in the right window select Disable real-time protection
Hi admin! I'm trying to enable Windows Defender in Windows 10, but in Windows Defender Security Center, the component Protection from viruses and threats the inscription hangs: "". When I try to restart Windows Defender using the corresponding button, a Unknown error... How do I fix Windows Defender? Thank you in advance!
Answer
Let's take a look at the typical reasons why the virus and threat protection function (built-in Windows Defender antivirus) may not work in Windows 10. Check all items one by one.
Disable third-party antivirus
Check if you have installed on your computer third party antivirus that interferes with normal running Windows Defender or conflicts with it. Try temporarily disabling (or removing) it.
Turn on Windows Defender Services
Open the Service Management Console ( services.msc) and check if the list of services contains the following items
- Windows Defender Advanced Threat Protection Service(Windows Defender Advanced Threat Protection Service) - Sense
- Windows Defender Network Inspection Service(Windows Defender Antivirus Network Inspection Service) - WdNisSvc
- Windows Defender Service(Windows Defender Antivirus Service) WinDefend
- Windows Defender Security Center Service(Windows Defender Security Center Service)
Check that the startup type for all services is Automatic. If any service is stopped, start it manually.
Enabling Windows 10 Defender in the registry
In some cases, it may turn out that the launch of Windows Defender is prohibited through the registry (the key can be installed by a third-party antivirus application).
Run Registry Editor (regedit.exe) and go to the branch HKLM \ Software \ Policies \ Microsoft \ Windows Defender... In the event that in right panel there are parameters DisableAntiVirus and DisableAntiSpyware(at least one), remove them or change the value to 0 .
After that, try restarting the Virus and threat protection service. She needs to work.
Check Windows Defender status in Group Policy Editor
Open the Group Policy Editor (gpedit.msc) and check if Windows Defender is disabled using Group Policy. To do this, go to the section Computer Configuration -> Administrator Templates -> Windows Components -> Windows Defender Antivirus(Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender Antivirus). Check that the policy Turn off Windows Defender Antivirus (Turn off Windows Defender Antivirus) is in the state Not set or Disabled.
Reregistering Windows Defender Libraries
Try re-registering the Windows Defender Libraries. To do this, open command line with administrator rights and run the commands:
regsvr32 atl.dll
regsvr32 wuapi.dll
regsvr32 softpub.dll
regsvr32 mssip32.dll
Restart Windows Defender and check if the problem is fixed.
Hope this short instruction helped you solve the problem with the inability to start (stop) the Threat Service.